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**'68OrangeSunshine** · 08-26-2010, 07:39 AM

The way my finances are lately [=0], I may just cannibalize the 12 Bolt Corp 3.73 w/Auburn posi off my [longtime-down] '67 K/10 Suburban and mount it on the Jimmy. And swap the Jimmy's axle [12-bolt 3.73 w/Eaton posi] onto the dormant Sub.
I parked them next to each other and measured the spring perch distance and the backing plate distance and they were both the same. 40" spring to spring, and 56" from backing plate to backing plate. Brakes are the only glitch. The '67 has 10" brake drums, the '71 has 11" HD drums with cooling ribs. Do I need different brake shoes and wheel cylinders?
Shop labor rate in Tucson is about $70/hr.

08-26-2010, 07:39 AM	#9
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,071	Re: War Surplus Axles The way my finances are lately [=0], I may just cannibalize the 12 Bolt Corp 3.73 w/Auburn posi off my [longtime-down] '67 K/10 Suburban and mount it on the Jimmy. And swap the Jimmy's axle [12-bolt 3.73 w/Eaton posi] onto the dormant Sub. I parked them next to each other and measured the spring perch distance and the backing plate distance and they were both the same. 40" spring to spring, and 56" from backing plate to backing plate. Brakes are the only glitch. The '67 has 10" brake drums, the '71 has 11" HD drums with cooling ribs. Do I need different brake shoes and wheel cylinders? Shop labor rate in Tucson is about $70/hr. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 08-26-2010 at 07:42 AM.